RFR(XS): 8157861 - [TESTBUG] compiler/jvmci/compilerToVM/ReprofileTest.java failed with RuntimeException

[Dmitrij Pochepko]

Hi,

please review fix for 8157861 - [TESTBUG] 
compiler/jvmci/compilerToVM/ReprofileTest.java failed with RuntimeException

Test intermittently failed before because compilation queue was 
overloaded sometimes, so, compilation went through another compilation 
levels sequence, which caused unexpected test scenario state. This patch 
adds Xbatch to have test more deterministic and stable. I've also 
updated requires tag for TieredStopAtLevel restrictions case.

webrev: http://cr.openjdk.java.net/~dpochepk/8157861/webrev.01/
CR: https://bugs.openjdk.java.net/browse/JDK-8157861

I've tested this fix in jprt.

Thanks,
Dmitrij